Warming shelf for a parlor stove



FIG. 1 is a front perspective view of a warming shelf for a palor stove, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top view thereof; and

FIG. 4 is a bottom view thereof. 

The ornamental design for a warming shelf for a parlor stove, as shown and described. 